This new version of XMail synchronization tool allows to relay mail via specified IP address, not only standard SMTP delivery. Thus is possible to use it not only for synchronization between primary and secondary MX, but also between frontend (public) and backend (private) server.

I need a tool to synchronize mails between primary and secondary MX servers. XMail-SYNC could be such a tool I'm looking for. Unfortunately it is designed for Wins. My servers run on FreeBSD. I can develop codes for this OS but I need the idea (the principle of XMail-SYNC). I visited this site http://software.altaircom.net/software/xmail-sync.aspx but couldn't find out contact details.

If you know please post how to contact Michal Altair Valasek.Thank you,

I use rysnc to mirror my servers for backup purposes, including XMail. I run it as a cron job, which for mail purposes has the disadvantage of syncing on a timed basis rather than immeadiately, but there are probably other ways to use it.

This works if you have the primary server drive mounted on the seconday (NFS, SAMBA, etc.) - this is the way I do it, but this is not strictly required with rsync which has a server/client setup as well.